Leading Swimwear & Activewear Manufacturer

Sweenie Manufacturing is a custom clothing manufacturer based in New York, specializing in swimwear, activewear, ready-to-wear, and private label production.

  • Woman in a pink swimsuit standing on the beach, with her hand shielding her eyes, looking into the distance.
  • A woman in a pink sports top and pink shorts standing on a beach with her hand on her hip.
  • Woman sitting on beach in a brown swimsuit, facing the ocean with her back to the camera, hair flowing, with one arm raised and the other resting on a rock.
  • Woman in a red swimsuit posing with her hands on her head, standing near surfboards outdoors.
  • A woman wearing a matching brown bikini with white and dark brown tropical themed pattern, outdoors with a blurred natural background.
  • Woman in a yellow long sleeve swimsuit standing on the beach with ocean waves in the background, illuminated by warm sunlight.
  • A woman lying on a wooden lounge chair in a bikini with black and white straps on a sandy surface.
  • Woman in swimwear holding a surfboard on a beach.
  • A woman with long, wet dark hair wearing a red sleeveless crop top and matching red shorts, standing outdoors on a beach with a surfboard, with water and hills in the background.
  • A woman lying on a surfboard at the beach, wearing a black swimsuit with cutouts.
  • A woman in red athletic outfit adjusting her hair on the beach, wearing sunglasses.
  • A woman in a green outfit and hat hugging a palm tree on a sandy beach with the ocean in the background.
  • A woman in a brown swimsuit places a flower crown on a seated girl wearing a matching swimsuit by the water's edge on a tropical beach with a tree and mountains in the background.
  • A woman with long hair wearing a brown, sleeveless, cut-out swimsuit, accessorized with a pearl necklace and a bracelet, leaning back on a wooden railing outdoors with trees and a cloudy sky in the background.
  • A woman in a black swimsuit stands with a surfboard under her back under a partly cloudy sky, with palm trees in the background.

Sweenie Manufacturing is committed to being a net good in the world. Based in the United States, we carefully source materials from a trusted global supply chain of eco-friendly mills. Both our company here in New York and our sister factory in Bogotá, Colombia, are female-owned and operated. Our team receives full benefits, above-average wages, and a retirement fund.

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An Ethical Apparel Manufacturer

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Design, Consulting, & Production Excellence

Sweenie Manufacturing is an industry leader in swim and activewear design, consulting, and production. We support entrepreneurs in bringing their brand to life, refining and expanding their vision with high-quality, scalable solutions.

Two women wearing swimsuits are standing back to back, with their arms raised and hands clasped together, against a clear blue sky.

Full Service Product Development

We will help you bring a new product to market or improve an existing line. We interpret your vision throughout the process, from sourcing, through materials selection, designing, and refining, until your product is complete.

Our long-standing experience and knowledge enable us to define direction and set your vision up for real-world success.

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Sourcing & Manufacturing

Through strategic partnerships, we offer full-service oversight of the entire manufacturing process.

Our quality control ensures all elements of your manufactured product meet or exceed the highest standards from start to finish.

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Swimwear Manufacturing

Whether your focus is on women’s bikinis, men’s trunks, or stylish unisex swimsuits, we are your bathing suit manufacturer. We ensure your custom swimwear is engineered to stand out and deliver.

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Activewear Production

Clothing your core is one of our strengths. As fitness clothing manufacturers, we understand fit, function, and fabrication of clothing built for effortless movement.

Abstract illustration of a wave with shades of blue and teal.

Ready-to-Wear

Sweenie is the ethical apparel manufacturer for your wovens, knits, and specialty categories. Our technical expert custom design services blend comfort with refined tailoring to help you build a strong brand identity and inspire loyalty.